Holding device for engraving templets



Nov. 3, 1959 H. c. w. JOHANNESON HOLDING DEVICE FOR ENGRAVING TEMPLETS Filed June 20, 1957 2 heets-Sheet 1 if; i 25 2 2/ /6 /2 /0 /4 /2 9' 222 A Nov. 3, 1959 H. c. w. JOHANNESON 2,910,774

HOLDING DEVICE FOR ENGRAVING TEMPLETS Filed June 20, 1957 2 Sheets-Sheet 2 United States Patent HOLDING DEVICE FOR ENGRAVING TEMPLETS Henrik Carl Werner, Johanneson, Goteborg, Sweden Application June 20, 1957, Serial No. 666,893

Claims priority, application Sweden June 25, 1956 2 Claims. (Cl. 33-23) This invention relates to a holding device for engraving templets.

The primary object of the invention is to provide an improved holding device of the class described, consisting of spaced apart guide members each being provided with a groove to co-operate with correspondingly formed portions of the templets so that the same may he slid between said guide members, means for pressing the templets towards each other and means for moving one or more of said guide members in a direction perpendicular to the plane of the templets when the same are in their functional position so that the latter may be easily removed from the device.

Other objects and advantages will appear as the description proceeds and, by way of illustration but not of limitation, an embodiment of the invention is shown in the accompanying drawings in which Fig. l is a perspective view of the holding device;

Fig. 2 is a larger scaled partial end view of the same;

Fig. 3 is a vertical larger scale cross-section along the line IIIIII of Fig. l; and

Fig. 4 is a partial plane view of the templet holder together with a portion of a table attached to the device.

The numeral 1 in the drawings refers to two side pieces fixed to a base plate 2. The side pieces are parallel with each other and, in combination with the base plate, form the supporting frame of the holding device. A number of mutually parallel and axially non-displaceable pairs of screwed spindles 3 are journalled in the said side pieces. The two screwed spindles 3 of each pair are co-axially disposed, and each of the two ends, with their right and left-hand threads respectively, set in opposition and secured against individual turning, rotate in a bearing 5. A knob 4, handwheel or the like, for the turning of each pair of spindles, whose right and left-hand screwed ends may be integral, is preferably fixedly mounted on the end of one of the spindles. The outer end of the other spindle has preferably a non-circular cross-section 6, and is adapted for engagement with a crank (not shown), for the purpose of more rapid rotation of the spindle pair if required. The thread of each screwed spindle 3 engages a nut 7, adapted to move between two rails S and 9 running parallel with the screwed spindles and fixed to the base-plate 2 in such a manner that, being prevented from turning, the said nut is caused to slide axially when the spindles are rotated. Each nut 7 either carries, or is designed as a gripper 10, the two opposite edges 11 and 12 of which project outside the nut and slide in grooves 13 and 14 cut in the rails 8 and 9. Between two adjacent rails 9, 9' is adapted another rail running parallel with the screwed spindles and with a cross-section forming an inverted U, the downward projecting shanks of which being designated 15 and 16 and the upward turned base 17. Between the shanks 15, 16 of this U-shaped rail, journalled in the side pieces 1 and running parallel with the screwed spindles is adapted a round shaft 18, which can be turned by means of a "ice handle 26, and which at each end, on the inside of the side pieces, carries a permanently fixed pinion 19, engag ing a vertical rack 25 at the corresponding and of the U-shaped rail, said rack being fixed to, or machined in, one of the shanks 15.

The upward-turned bottom or" the U-shaped rail is provided with a longitudinal ledge 29, which on one or both sides is provided with an acutely angular groove 21. A corresponding groove 22 is also provided in the fixed railfi, and together the two grooves 21, 22 form a dovetail guiding track. The bevelled edges of the preferably rectangular engraving templets 23 fit into the grooves 21, 22 and are disposed between the grippers 10.

When the U-shaped rail BS-17 is lowered and the templets lie in their plane of operation AA as shown in Fig. 3 (left-hand portion), rotation of the spindle pair 3 will press the templets between the grippers 310, and hold them in position above the center of the spindle pair unit 3, and a templet or row of templets will be retained in this position tightly pressed together when utilised for the engraving operation. If one, or a plurality of templets are to be removed, the grippers 10 are first caused to be slightly separated, so as to ease the pressure against their edges, and the shaft 1?) is then rotated, thus causing the U-shaped rail '1517 to slide vertically, as shown in the right-hand portion of Fig. 3. This action vvill bring the templet or templets into a sloping position relative to the plane AA, and capable of being removed direct from the holding device, or caused to slide to one end of the dovetail track 21, 22, since the grippers 10 in this position of the holding device fail to reach the templets, and consequently do not prevent same from being pushed in one direction or the other in their tracks.

The invention allows for the holding device to be so designed that any required number of rows of templets can be accommodated and held in position.

For this purpose the guide ledge Ztl of the U-shaped rail, on the side opposite to the guiding groove 21, is provided with a similar guiding groove 21, whilst a rail 3' corresponding to the previously mentioned fixed rail S, has been arranged. A further pair of screwed spindles 3', together with nuts 7 and grippers 1b, is journalled between the rails 9 and 8'.

With the aid of the same raising and lowering arrangement 15- 19, 25 for one of the edges of the templets, the latter may be raised from or lowered into the functional plane AA, thus showing that one and the same raising and lowering mechanism is capable of manipulating two rows of templets 23. The drawing illustrates a holding device for four rows of templets, but as previously mentioned, the holder may be designed for any number of required rows of templets.

It is possible to fix a cloth-covered table to the side pieces 1 for the purpose of accommodating removed templets not intended for immediate use.

The design of the various components may obviously deviate from those shown in the drawings without limiting the scope of the invention. Thus, for example, the parallel sliding action at right angles to the functional plane AA of the U-shaped rails may be accomplished by means of eccentric cams fixed to the round shafts 18 and adapted to co-act with suitable sliding surfaces on portions adapted between the rail shanks.

It is also possible to provide, at right angles to the rails a turnable shaft which carries cams by means of which a desired number of rails may be simultaneously operated when the shaft is turned.

What I claim is:

1. A holder device for engraving templets, said device comprising at least one pair of laterally spaced inverted U-shaped guide members, each being provided with a longitudinal groove to engageably receive a c0rrespondingly shaped portion of the templets so that the latter may be displaced between and along said guide members, a shaft parallel with said guide members and journalled between the shanks of one of the same and connected to the same by means of a transmission unit in such a manner that upon rotation of said shaft, the guide member is adapted to slide in one direction or the other substantially at right angles to the functional plane of the templets, thus enabling the latter to be easily removed from the device, and holding means for pressing said templets towards each other.

2. A holder device for engraving templets, said device comprising at least one pair of laterally spaced inverted U-shaped guide members, each being provided with a longitudinal groove to engageably receive a correspondingly shaped portion of the templets so that the latter may be displaced between and along said guide members, a shaft parallel with said guide members and journalled between the shanks of one of the guide members and provided with a pinion which engages a toothed rack fixed on the inside of one of the shanks of said guide member in such a manner that upon rotation of said shaft, the guide member is adapted to slide in one direction or the other substantially at right angles to the functional plane of the templets, thus enabling the latter to be easily removed from the device, and holding means for pressing said templets towards each other.

References Cited in the file of this patent UNITED STATES PATENTS 295,853 Beam Mar. 25, 1884 1,454,993 Bothwell May 15, 1923 2,240,825 Alexander May 6, 1941 2,299,294 Barnes Oct. 20, 1942 2,627,658 Green Feb. 10, 1953 

